package com.wyh.common.util;

/**
 * @Author 汪宇航
 * @Date 2024/3/7 10:33
 * @Version 1.5
 */

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jws;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.util.StringUtils;
import javax.servlet.http.HttpServletRequest;
import java.util.Date;

public class JwtUtils {

    @Value("${}")
    String clientId;


    @Value("${}")
    String appKey;

    @Value("${}")
    String curTime;

    @Value("${}")
    String ttl;

    @Value("${}")
    String clientSecret;
    public static final long EXPIRE = 1000 * 60 * 60 * 24;
    public static final String APP_SECRET = "zkdlh8Ycvxmwd9sDxzc8czxcascX9";

    public static void main(String[] args) {
        String dd = getJwtToken("2", "dd");
        System.out.println(dd);
    }

    public static String getJwtToken(String id, String nickname){

        String JwtToken = Jwts.builder()
                .setHeaderParam("type", "JWT")
                .setHeaderParam("alg", "HS256")
                .setSubject("guli-user")
                .setIssuedAt(new Date())
                .setExpiration(new Date(System.currentTimeMillis() + EXPIRE))
                .claim("id", id)
                .claim("nickname", nickname)
                .signWith(SignatureAlgorithm.HS256, APP_SECRET)
                .compact();
        return JwtToken;

    }

    /**

     * 判断token是否存在与有效

     * @param jwtToken

     * @return

     */

    public static boolean checkToken(String jwtToken) {

        if(StringUtils.isEmpty(jwtToken)) return false;

        try {

            Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken);

        } catch (Exception e) {

            e.printStackTrace();

            return false;

        }

        return true;

    }

    /**

     * 判断token是否存在与有效

     * @param request

     * @return

     */

    public static boolean checkToken(HttpServletRequest request) {

        try {

            String jwtToken = request.getHeader("token");

            if(StringUtils.isEmpty(jwtToken)) return false;

            Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken);

        } catch (Exception e) {

            e.printStackTrace();

            return false;

        }
        return true;
    }


    /**

     * 根据token获取id

     * @param request

     * @return

     */

    public static String getMemberIdByJwtToken(HttpServletRequest request) {

        String jwtToken = request.getHeader("token");

        if(StringUtils.isEmpty(jwtToken)) return "";

        Jws<Claims> claimsJws = Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken);

        Claims claims = claimsJws.getBody();

        return (String)claims.get("id");

    }

}
